May 26, 2022

Milestones: HathiTrust Reaches Five Million Open Volumes

Mike Furlough, HathiTrust’s Executive Director, shares an in-depth/data-rich post (loaded with charts and tables).

Furlough writes:

In this post, I’d like to go into some detail to shed more light on the characteristics of these materials, our work to open them, and how we are endeavoring to make them as useful as possible. Numbers geeks, get ready.

Btw, the five millionth volume was by Ohio State University. Here’s a link to the record.

A treatise on the disorders and deformities of the teeth and gums, explaining the most rational methods of treating their diseases by Thomas Berdmore (London, 1770). Furlough points out that Berdmore was King George III’s*** dentist.

Read the Complete Post by the HT’s Mike Furlough

See Also: 5 Million Public Domain Ebooks in HathiTrust: What Does This Mean? (by Rick Anderson, The Scholarly Kitchen)

See Also: *** Perhaps well learn more about King George III’s teeth (-: as his papers are digitized by The Royal Archives. The digitization project was announced earlier this month.

About Gary Price

Gary Price ( is a librarian, writer, consultant, and frequent conference speaker based in the Washington D.C. metro area. Before launching INFOdocket, Price and Shirl Kennedy were the founders and senior editors at ResourceShelf and DocuTicker for 10 years. From 2006-2009 he was Director of Online Information Services at, and is currently a contributing editor at Search Engine Land.